Anri Sala Agassi, 2006

Agassi depicts the North American tennis player in the moment of a serve, in the fraction of a second before the racket hits the ball - an image of a moment of peak concentration and potentiality. Time is rolling, but nothing is changing except for the appearance of white circles on the upper-right side of the image, next to the ball and in the same direction to where Agassi's eyes are looking.

In movies, this white hole is a signal to the projectionist that it's time to change the reel, to preserve continuity. Lasting 125 milliseconds, it's a signal that the audience generally does not perceive. In Sala's work, the time between when the first hole disappears and the second one appears is approximately 0.79 seconds, the same time that it takes the ball, after an Agassi serve, to reach and hit the other player's side of the court.